Tabbed sheet.



1. C. HUB, Jn.

TABBED SHEET.

APPLlcAnoN mw MV1. |915.

1,218,557. f Patented'Mar. 6, 1917.

edge.

JOHN c. HUB, JR., or CLEVELAND, omo.

TABBED sanit/r.4

Application led May 7, 1915. Serial No. 26,611.

To all whom it may concern.'

Be it known that I, JOHN C. HUB, J r., a citizen of the United States,residing at Cleveland, in the county of Cuyahoga and State of Ohio, haveinvented certain new and useful Improvements in Tabbed Sheets,

of which the following is aspecification.

This invention relates to improvements in celluloid faced sheets 'andparticularly to securing means for' tabs whereby such means passesthroughan isolated opening in the sheet and is made homogeneous with thetab structure itself.

More specifically the invention relates to a tabbed sheet or cardcomprising a sheet or card having openings near but within the edge ofthe card and a tab structure having celluloid sheet or card engagingstrips eX- tending over the tab edge of the card and over the openingsand having Celluloid bonds extending through the openings and holdingthe securing strips in place.

The invention may be further brieiy surnmarized as consisting in theconstruction and combination of parts hereinafter set forth in thefollowing description, drawings and claims.

Referring to the drawings, Figure l is a side elevation of a portion ofa card and of the tab structure with part broken away; Fig. 2 is asection upon the line 2-2; Fig. 3 is a section upon the line 3-3; andFig. 4 is a sectional view of a modified form.

The invention is applicable to any structure where celluloid facings areto be yapplied to a sheet or card and particularly where a tab is to ybeapplied, and I have illustrated the invention in the drawings as appliedto a tabbed index card, and this specific application will suffice toexplain and illustrate the invention.

In carrying out the invention the card 1 is provided near its tab edgewith openings 2, which are preferablyl round and are punched through thebody of the card so that they are isolated, as it were, from theInserted in these openings are bonds 3, preferably of celluloid, each inthe form of a disk, which fits nicely in its opening.

The tab structure itself preferably comprises an inner piece 4 ofcelluloid preferably of the thickness of the card 4and extendingibeyondthe tab edge. This inner piece be recessed toward one tab end, as shownat 5, to provide an insert ocket, as will later appear. Folded over t isinner piece and i inward by pressure so 4 may/ tab structureSpecification of Letters Patent. A

Patenten Mar. e, ieri;

extending down over celluloid. The extended side portions of this casingform securing strips 7, which4 are adapted ltolap onto the card andextend entirely over thecelluloid bonds 3.

The tab structure itself is preferably made up before being applied tothe card and in application, the pcrtion of the card about the bonds 3and the surfaces of these bonds are moistened with any suitable solventfor celluloid and the tab structure is applied under pressure and heat,with the result that the moistened celluloid securing strips adhere tothe surface of the card and become amalgamated with the bonds so thatthere is a homogeneous celluloid structure passing through openingswithin the edge of the card and serving to unite the card and the tabstructure. 1

In thel modification shown in Fig. 4, the portions 8 of the securingstrips Z are forced that they touch within the openings 2 and form acelluloid bond of the securing strips in the openings 2.

I have shown the tab structure as having an inner piece 4 of 'celluloidwith an insert in this piece, but it is obvious that the inner piece maybe made of solid celluloid or may be a por-tion of 'cardboard whichforms either a partl of the card itself or a separate piece. It is alsoobvious that the casing when secured to the inner piece forms an insertpocket for a suitable legend strip 9.

It will be seen from the foregoing that by securing the tab tothe cardin this way a very secure bond between the parts is produced without anyundue increase in the thickness of the product.

Having described my invention, I claim 1. The combination with a sheethaving an isolated opening therein, of celluloid plates on both sidesthereof, and a celluloid bond united with the side plates and extendingthrough the openings in the sheet.

2. A tabbed sheet structure comprising a sheet havingV an isolatedopening Within the tab edge, and a tab structure having a celluloidcover with a celluloid bond extending through the opening in the sheet.

z3. In a tabbed sheet structure, a sheet having an isolated openingwithin the tab edge, a, celluloid insert within said opening, and ayextending onto the sheet over said insert and amalgamated' therewith.

4. In a'tabbed sheet structure,

a sheet havhaving celluloid binder strips the card is a casing 6 of ing`an isolated opening within the tab edge, an inner tab body extendingbeyond the tab edge, a Celluloid side plate member having portionsextending over the inner tab body and onto the sheet over the openingtherein, and a Celluloid bond within said opening between said sideplate portions.

5. In a tabbed sheet structure, a. sheet having an isolated openingwithin the tab edge,

an inner tab body of Celluloid extending being anl isolated openingwithin the tab edge, an inner tab body of Celluloid extending beyond thetab edge, a Celluloid side plate member having portions extending overthe inner tab body and onto the sheet over the opening therein, and aCelluloid bond insert arranged. within the opening within the sheet, theparts of the tab structure, the side plate portions and the bond beingamalgamated to form a homogeneous structure.

In testimony whereof I afliX my signature in presence of two Witnessesas follows.

' JOHN C. HUB, JR.

Witnesses:

AL'roN H. BEMIs, C. H. SHOTZBARGER.-

